Martin Dluhos martasd

## sum_intervals.py
def sum_intervals(interval_list):
    interval_list.sort(key=lambda lst: lst[0])

    # sum numbers in the interval with the lowest begin number
    begin, end = interval_list[0]
    max = end
    result = sum(range(begin, end + 1))

    # sum numbers from the remaining intervals
    for begin, end in interval_list[1:]:
	def sum_intervals(interval_list):
	interval_list.sort(key=lambda lst: lst[0])

	# sum numbers in the interval with the lowest begin number
	begin, end = interval_list[0]
	max = end
	result = sum(range(begin, end + 1))

	# sum numbers from the remaining intervals
	for begin, end in interval_list[1:]: